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Earnings Per Share Attributable To International Paper Company Common Shareholders (Tables)
 12 Months Ended
Dec. 31, 2016
Earnings Per Share, Basic and Diluted [Abstract]  
Schedule Of Earnings Per Share, Basic and Diluted [Table Text Block]
A reconciliation of the amounts included in the computation of basic earnings (loss) per share from continuing operations, and diluted earnings (loss) per share from continuing operations is as follows: 
In millions, except per share amounts
2016
 
2015
 
2014
Earnings (loss) from continuing operations
$
909

 
$
938

 
$
568

Effect of dilutive securities
—

 
—

 
—

Earnings (loss) from continuing operations – assuming dilution
$
909

 
$
938

 
$
568

Average common shares outstanding
411.1

 
417.4

 
427.7

Effect of dilutive securities:
 
 
 
 
 
Restricted performance share plan
4.5

 
3.2

 
4.2

Stock options (a)
—

 
—

 
0.1

Average common shares outstanding  – assuming dilution
415.6

 
420.6

 
432.0

Basic earnings (loss) per share from continuing operations
$
2.21

 
$
2.25

 
$
1.33

Diluted earnings (loss) per share from continuing operations
$
2.19

 
$
2.23

 
$
1.31



(a)
Options to purchase shares were not included in the computation of diluted common shares outstanding if their exercise price exceeded the average market price of the Company’s common stock for each respective reporting date.